1-2
The D.O.M. (date of manufacture) indicates the
production date of the engine by year and numerical day.
(Illust. 1-5)
This symbol points out important safety
INSTRUCTIONS, WHICH IF NOT FOLLOWED,
could endanger the personal safety of YOU and
others. Follow all instructions.
SHORT BLOCKS
New short blocks are identified by a tag marked S.B.V.
(Short Block Vertical) located on the engine block. When
a short block repair is made, it is vital both the original
engine and short block numbers are present on the
repaired product for correct future parts identification.
(Illust. 1-6)
1-5
1-6
Using model TVT691-600401A D.O.M. 9146 as an
example, the interpretation is as follows:
TVT691- Is the model number.
60041A Represents the specification number used for
properly identifying the parts of the engine.
TVT Tecumseh Vertical Twin.
691 Indicates the displacement in cubic
centimeters.
9146 Is the D.O.M. (Date of Manufacture) formerly
serial number.
9 Is the last digit in the year of manufacture
(1999).
146 Indicates the calendar day of that year (146th
day or May 26
th
of 1999).
A,B,C A letter following the D.O.M. number
represents the line, shift and plant in which
the engine was built.
Emissionized engines that meet the California Air
Resource Board (C.A.R.B.) or the Environmental
Protection Agency (EPA) standards will include additional
required engine information on the engine decal.
NOTE: To maintain the best possible emission
performance, use only Genuine Tecumseh Parts.
FUELS
Tecumseh Products Company strongly recommends the
use of fresh, clean, unleaded regular gasoline in all
Tecumseh engines. Unleaded gasoline burns cleaner,
extends engine life, and promotes good starting by
reducing the build up of combustion chamber deposits.
Unleaded regular, unleaded premium or reformulated
gasoline containing no more than 10% Ethanol, 15%
MTBE or 15% ETBE may be used.
Leaded fuel is not available in the United States and
should not be used if any of the above options are
available.
Never use gasoline, fuel conditioners, additives or
stabilizers containing methanol, white gas, or fuel blends,
which exceed the limits, specified above for Ethanol,
MTBE, or ETBE because engine/fuel system damage
could result.
CAUTION: THE USE OF SOME ANTI-ICING
ADDITIVES MAY CREATE A METHANOL FUEL
BLEND. DO NOT USE ADDITIVES THAT
CONTAIN METHANOL. FUEL CONDITIONERS
THAT CONTAIN ISOPROPYL ALCOHOL CAN
BE USED IN CORRECT MIXTURE RATIOS.
Regardless of which of the approved fuels are used, fuel
quality is critical to engine performance. Fuel should
not be stored in an engine or container more than 30
days prior to use. Time may be extended with the use of
a fuel stabilizer like TECUMSEH, part number 730245.
See “STORAGE” instructions in this Manual, Operators
Manual, or Bulletin 111.
DATE OF
MANUFACTURE
(D.O.M.)
SBV OR SBH IDENTIFICATION NUMBER
SHORT BLOCK IDENTIFICATION TAG
SERIAL NUMBER
SBV- 564A
SER 5107
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